Implemented new preference setting screen for face based auto-rotation

Test: locally with phone and make -j64 RunSettingsRoboTests
ROBOTEST_FILTER="com.android.settings.display.SmartAutoRotatePreferenceControllerTest"

Bug: 172857585
Change-Id: I8aaeb9d726ff71f64fd241c01fe2a1268fff927e

AndroidManifest.xml

@@ -954,7 +954,7 @@
                 <category android:name="com.android.settings.SHORTCUT" />
             </intent-filter>
             <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
-                android:value="com.android.settings.DisplaySettings" />
+                android:value="@string/rotate_settings_class" />
             <meta-data android:name="com.android.settings.PRIMARY_PROFILE_CONTROLLED"
                 android:value="true" />
         </activity>

res/values/strings.xml

@@ -97,6 +97,15 @@
     <!-- Description for the button that makes interface elements larger. [CHAR_LIMIT=NONE] -->
     <string name="font_size_make_larger_desc">Make larger</string>
 
+    <!-- Auto rotate switchbar title. [CHAR_LIMIT=NONE] -->
+    <string name="auto_rotate_settings_primary_switch_title">Use Auto-Rotate</string>
+
+    <!-- Disclaimer for camera based rotate [CHAR_LIMIT=NONE] -->
+    <string name="smart_rotate_text_headline">
+        Face based Autorotate uses the front camera to see if and how someone is looking at the screen. It allows
+        for reading while lying down and images are never stored or sent to Google.&lt;br>&lt;br>
+       &lt;a href="<xliff:g example="http://www.google.com" id="url">http://support.google.com/mobile?p=telephony_rtt</xliff:g>">Learn more&lt;/a>
+    </string>
     <string name="font_size_preview_text_headline">Sample text</string>
     <string name="font_size_preview_text_title"
             translation_description="Title text in sample text used to illustrate how the currently selected font size will appear to the user. NOTE: Translate manually. No not adopt any copyrighted material for translation.">
@@ -2704,8 +2713,18 @@
     <!-- Display settings --><skip/>
     <!-- Sound & display settings screen, section header for settings related to display -->
     <string name="display_settings">Display</string>
+    <!-- Sound & display settings screen, section header for settings related to display -->
+    <string name="rotate_settings_class" translatable="false">com.android.settings.DisplaySettings</string>
     <!-- Sound & display settings screen, accelerometer-based rotation check box label -->
     <string name="accelerometer_title">Auto-rotate screen</string>
+    <!-- Sound & display settings screen, locked rotation check box label [CHAR LIMIT=30] -->
+    <string name="auto_rotate_option_off">Off</string>
+    <!-- Sound & display settings screen, accelerometer-based rotation check box label [CHAR LIMIT=30] -->
+    <string name="auto_rotate_option_on">On</string>
+    <!-- Sound & display settings screen, face-based rotation check box label [CHAR LIMIT=30] -->
+    <string name="auto_rotate_option_face_based">On - Face-based</string>
+    <!-- SmartAutoRotatePreferenceFragment settings screen, face-based rotation switch label [CHAR LIMIT=30] -->
+    <string name="auto_rotate_switch_face_based">Enable Face Detection</string>
     <!-- Display settings screen, Color mode settings title [CHAR LIMIT=30] -->
     <string name="color_mode_title">Colors</string>
     <!-- Display settings screen, Color mode option for "natural(sRGB) color"  [CHAR LIMIT=45] -->

res/xml/auto_rotate_settings.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2021 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<PreferenceScreen
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:settings="http://schemas.android.com/apk/res-auto"
+    android:title="@string/accelerometer_title" >
+
+    <SwitchPreference
+        android:key="face_based_rotate"
+        android:title="@string/auto_rotate_switch_face_based"
+        settings:controller="com.android.settings.display.SmartAutoRotateController" />
+
+    <com.android.settingslib.widget.FooterPreference
+        android:icon="@drawable/ic_privacy_shield_24dp"
+        android:selectable="false"
+        settings:searchable="false" />
+
+</PreferenceScreen>

src/com/android/settings/core/gateway/SettingsGateway.java

@@ -83,6 +83,7 @@ import com.android.settings.deviceinfo.aboutphone.MyDeviceInfoFragment;
 import com.android.settings.deviceinfo.firmwareversion.FirmwareVersionSettings;
 import com.android.settings.deviceinfo.legal.ModuleLicensesDashboard;
 import com.android.settings.display.NightDisplaySettings;
+import com.android.settings.display.SmartAutoRotatePreferenceFragment;
 import com.android.settings.display.darkmode.DarkModeSettingsFragment;
 import com.android.settings.dream.DreamSettings;
 import com.android.settings.enterprise.EnterprisePrivacySettings;
@@ -176,6 +177,7 @@ public class SettingsGateway {
             SavedAccessPointsWifiSettings2.class.getName(),
             AllInOneTetherSettings.class.getName(),
             TetherSettings.class.getName(),
+            SmartAutoRotatePreferenceFragment.class.getName(),
             WifiP2pSettings.class.getName(),
             WifiTetherSettings.class.getName(),
             BackgroundCheckSummary.class.getName(),

src/com/android/settings/display/AutoRotateSwitchBarController.java

@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.display;
+
+import android.app.settings.SettingsEnums;
+import android.content.Context;
+import android.widget.Switch;
+
+import com.android.internal.view.RotationPolicy;
+import com.android.settings.overlay.FeatureFactory;
+import com.android.settings.widget.SettingsMainSwitchBar;
+import com.android.settingslib.core.instrumentation.MetricsFeatureProvider;
+import com.android.settingslib.core.lifecycle.Lifecycle;
+import com.android.settingslib.core.lifecycle.LifecycleObserver;
+import com.android.settingslib.core.lifecycle.events.OnStart;
+import com.android.settingslib.core.lifecycle.events.OnStop;
+import com.android.settingslib.widget.OnMainSwitchChangeListener;
+
+/**
+ * The switch controller for the location.
+ */
+public class AutoRotateSwitchBarController implements OnMainSwitchChangeListener,
+        LifecycleObserver, OnStart, OnStop {
+
+    private final SettingsMainSwitchBar mSwitchBar;
+    private final Context mContext;
+    private boolean mValidListener;
+    private final MetricsFeatureProvider mMetricsFeatureProvider;
+
+    public AutoRotateSwitchBarController(Context context, SettingsMainSwitchBar switchBar,
+            Lifecycle lifecycle) {
+        mSwitchBar = switchBar;
+        mContext = context;
+        mMetricsFeatureProvider = FeatureFactory.getFactory(context).getMetricsFeatureProvider();
+        if (lifecycle != null) {
+            lifecycle.addObserver(this);
+        }
+    }
+
+    @Override
+    public void onStart() {
+        if (!mValidListener) {
+            mSwitchBar.addOnSwitchChangeListener(this);
+            mValidListener = true;
+        }
+        onChange();
+    }
+
+    @Override
+    public void onStop() {
+        if (mValidListener) {
+            mSwitchBar.removeOnSwitchChangeListener(this);
+            mValidListener = false;
+        }
+    }
+
+    /**
+     * Listens to the state change of the rotation primary switch.
+     */
+    @Override
+    public void onSwitchChanged(Switch switchView, boolean isChecked) {
+        setRotationLock(isChecked);
+    }
+
+
+    protected void onChange() {
+        final boolean isEnabled = !RotationPolicy.isRotationLocked(mContext);
+        if (isEnabled != mSwitchBar.isChecked()) {
+            // set listener to null so that that code below doesn't trigger onCheckedChanged()
+            if (mValidListener) {
+                mSwitchBar.removeOnSwitchChangeListener(this);
+            }
+            mSwitchBar.setChecked(isEnabled);
+            if (mValidListener) {
+                mSwitchBar.addOnSwitchChangeListener(this);
+            }
+        }
+    }
+
+    private boolean setRotationLock(boolean isChecked) {
+        final boolean isLocked = !isChecked;
+        mMetricsFeatureProvider.action(mContext, SettingsEnums.ACTION_ROTATION_LOCK, isLocked);
+        RotationPolicy.setRotationLock(mContext, isLocked);
+        return true;
+    }
+
+}
+

src/com/android/settings/display/SmartAutoRotateController.java

@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.settings.display;
+
+import static android.provider.Settings.Secure.CAMERA_AUTOROTATE;
+
+import android.app.settings.SettingsEnums;
+import android.content.Context;
+import android.provider.Settings;
+
+import androidx.preference.Preference;
+
+import com.android.internal.view.RotationPolicy;
+import com.android.settings.core.TogglePreferenceController;
+import com.android.settings.overlay.FeatureFactory;
+import com.android.settingslib.core.instrumentation.MetricsFeatureProvider;
+
+/**
+ * SmartAutoRotateController controls whether auto rotation is enabled
+ */
+public class SmartAutoRotateController extends TogglePreferenceController implements
+        Preference.OnPreferenceChangeListener {
+
+    private final MetricsFeatureProvider mMetricsFeatureProvider;
+
+    public SmartAutoRotateController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+        mMetricsFeatureProvider = FeatureFactory.getFactory(context).getMetricsFeatureProvider();
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return !RotationPolicy.isRotationLocked(mContext)
+                ? AVAILABLE : DISABLED_DEPENDENT_SETTING;
+    }
+
+    @Override
+    public boolean isChecked() {
+        return Settings.Secure.getInt(mContext.getContentResolver(),
+                CAMERA_AUTOROTATE, 0) == 1;
+    }
+
+    @Override
+    public boolean setChecked(boolean isChecked) {
+        mMetricsFeatureProvider.action(mContext, SettingsEnums.ACTION_CAMERA_ROTATE_TOGGLE,
+                isChecked);
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                CAMERA_AUTOROTATE,
+                isChecked ? 1 : 0);
+        return true;
+    }
+}

src/com/android/settings/display/SmartAutoRotatePreferenceController.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.display;
+
+import static android.provider.Settings.Secure.CAMERA_AUTOROTATE;
+
+import android.content.Context;
+import android.os.UserHandle;
+import android.provider.Settings;
+import android.util.Log;
+
+import androidx.preference.Preference;
+
+import com.android.internal.view.RotationPolicy;
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+
+/**
+ * SmartAutoRotatePreferenceController provides auto rotate summary in display settings
+ */
+public class SmartAutoRotatePreferenceController extends BasePreferenceController {
+
+    private static final String TAG = "SmartAutoRotatePreferenceController";
+
+    public SmartAutoRotatePreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return RotationPolicy.isRotationLockToggleVisible(mContext)
+                ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
+    }
+
+    protected void update(Preference preference) {
+        refreshSummary(preference);
+    }
+
+    @Override
+    public CharSequence getSummary() {
+        int activeStringId = R.string.auto_rotate_option_off;
+        if (!RotationPolicy.isRotationLocked(mContext)) {
+            try {
+                final int cameraRotate = Settings.Secure.getIntForUser(
+                        mContext.getContentResolver(),
+                        CAMERA_AUTOROTATE,
+                        UserHandle.USER_CURRENT);
+                activeStringId = cameraRotate == 1 ? R.string.auto_rotate_option_face_based
+                        : R.string.auto_rotate_option_on;
+            } catch (Settings.SettingNotFoundException e) {
+                Log.w(TAG, "CAMERA_AUTOROTATE setting not found", e);
+            }
+        }
+        return mContext.getString(activeStringId);
+    }
+}

src/com/android/settings/display/SmartAutoRotatePreferenceFragment.java

@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.settings.display;
+
+import android.app.settings.SettingsEnums;
+import android.content.Context;
+import android.os.Bundle;
+import android.text.Html;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.preference.Preference;
+
+import com.android.internal.view.RotationPolicy;
+import com.android.settings.R;
+import com.android.settings.SettingsActivity;
+import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settings.widget.SettingsMainSwitchBar;
+import com.android.settingslib.core.AbstractPreferenceController;
+import com.android.settingslib.search.Indexable;
+import com.android.settingslib.widget.FooterPreference;
+import com.android.settingslib.search.SearchIndexable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Preference fragment used to auto rotation
+ */
+@SuppressWarnings("WeakerAccess")
+@SearchIndexable
+public class SmartAutoRotatePreferenceFragment extends DashboardFragment {
+
+    private static final String TAG = "SmartAutoRotatePreferenceFragment";
+
+    private RotationPolicy.RotationPolicyListener mRotationPolicyListener;
+    private AutoRotateSwitchBarController mSwitchBarController;
+    private static final String FACE_SWITCH_PREFERENCE_ID = "face_based_rotate";
+    private static final String SMART_AUTO_ROTATE_CONTROLLER_KEY = "auto_rotate";
+
+    @Override
+    protected int getPreferenceScreenResId() {
+        return R.xml.auto_rotate_settings;
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        final View view = super.onCreateView(inflater, container, savedInstanceState);
+        final SettingsActivity activity = (SettingsActivity) getActivity();
+        final SettingsMainSwitchBar switchBar = activity.getSwitchBar();
+        switchBar.setTitle(
+                getContext().getString(R.string.auto_rotate_settings_primary_switch_title));
+        switchBar.show();
+        mSwitchBarController = new AutoRotateSwitchBarController(activity, switchBar,
+                getSettingsLifecycle());
+        return view;
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        if (mRotationPolicyListener == null) {
+            mRotationPolicyListener = new RotationPolicy.RotationPolicyListener() {
+                @Override
+                public void onChange() {
+                    mSwitchBarController.onChange();
+                    final boolean isLocked = RotationPolicy.isRotationLocked(getContext());
+                    final Preference preference = findPreference(FACE_SWITCH_PREFERENCE_ID);
+                    if (preference != null) {
+                        preference.setEnabled(!isLocked);
+                    }
+                }
+            };
+        }
+        RotationPolicy.registerRotationPolicyListener(getPrefContext(),
+                mRotationPolicyListener);
+
+        findPreference(FooterPreference.KEY_FOOTER).setTitle(
+                Html.fromHtml(getString(R.string.smart_rotate_text_headline),
+                        Html.FROM_HTML_MODE_COMPACT));
+    }
+
+
+    @Override
+    public void onPause() {
+        super.onPause();
+
+        if (mRotationPolicyListener != null) {
+            RotationPolicy.unregisterRotationPolicyListener(getPrefContext(),
+                    mRotationPolicyListener);
+        }
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        return SettingsEnums.DISPLAY_AUTO_ROTATE_SETTINGS;
+    }
+
+    @Override
+    protected List<AbstractPreferenceController> createPreferenceControllers(Context context) {
+        return buildPreferenceControllers(context);
+    }
+
+    private static List<AbstractPreferenceController> buildPreferenceControllers(
+            Context context) {
+        final List<AbstractPreferenceController> controllers = new ArrayList<>();
+        controllers.add(
+                new SmartAutoRotatePreferenceController(context, SMART_AUTO_ROTATE_CONTROLLER_KEY));
+        return controllers;
+    }
+
+    @Override
+    protected String getLogTag() {
+        return TAG;
+    }
+
+    public static final Indexable.SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.auto_rotate_settings) {
+
+                @Override
+                public List<AbstractPreferenceController> createPreferenceControllers(
+                        Context context) {
+                    return buildPreferenceControllers(context);
+                }
+
+                @Override
+                protected boolean isPageSearchEnabled(Context context) {
+                    return false;
+                }
+            };
+}

tests/robotests/src/com/android/settings/display/SmartAutoRotatePreferenceControllerTest.java

@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.display;
+
+import static android.provider.Settings.Secure.CAMERA_AUTOROTATE;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.when;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.os.UserHandle;
+import android.provider.Settings;
+
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+import com.android.settings.testutils.FakeFeatureFactory;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Answers;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(RobolectricTestRunner.class)
+public class SmartAutoRotatePreferenceControllerTest {
+
+    @Mock(answer = Answers.RETURNS_DEEP_STUBS)
+    private Context mContext;
+    @Mock
+    private PackageManager mPackageManager;
+    private ContentResolver mContentResolver;
+    private SmartAutoRotatePreferenceController mController;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        FakeFeatureFactory.setupForTest();
+        mContentResolver = RuntimeEnvironment.application.getContentResolver();
+        when(mContext.getPackageManager()).thenReturn(mPackageManager);
+        when(mContext.getContentResolver()).thenReturn(mContentResolver);
+        when(mContext.getString(R.string.auto_rotate_option_off))
+                .thenReturn("Off");
+        when(mContext.getString(R.string.auto_rotate_option_on))
+                .thenReturn("On");
+        when(mContext.getString(R.string.auto_rotate_option_face_based))
+                .thenReturn("On - Face-based");
+
+        disableCameraBasedRotation();
+
+        mController = new SmartAutoRotatePreferenceController(mContext, "smart_auto_rotate");
+    }
+
+    @Test
+    public void isAvailableWhenPolicyAllows() {
+        assertThat(mController.isAvailable()).isFalse();
+
+        enableAutoRotationPreference();
+
+        assertThat(mController.isAvailable()).isTrue();
+    }
+
+    @Test
+    public void updatePreference_settingsIsOff_shouldTurnOffToggle() {
+        disableAutoRotation();
+
+        assertThat(mController.getSummary()).isEqualTo("Off");
+    }
+
+    @Test
+    public void updatePreference_settingsIsOn_shouldTurnOnToggle() {
+        enableAutoRotation();
+
+        assertThat(mController.getSummary()).isEqualTo("On");
+    }
+
+    @Test
+    public void updatePreference_settingsIsCameraBased_shouldTurnOnToggle() {
+        enableCameraBasedRotation();
+        enableAutoRotation();
+
+        assertThat(mController.getSummary()).isEqualTo("On - Face-based");
+
+        disableAutoRotation();
+
+        assertThat(mController.getSummary()).isEqualTo("Off");
+    }
+
+    @Test
+    public void testGetAvailabilityStatus() {
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(BasePreferenceController
+                .UNSUPPORTED_ON_DEVICE);
+
+        enableAutoRotationPreference();
+
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(BasePreferenceController
+                .AVAILABLE);
+
+        disableAutoRotationPreference();
+
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(BasePreferenceController
+                .UNSUPPORTED_ON_DEVICE);
+    }
+
+    @Test
+    public void isSliceableCorrectKey_returnsTrue() {
+        final AutoRotatePreferenceController controller =
+                new AutoRotatePreferenceController(mContext, "auto_rotate");
+        assertThat(controller.isSliceable()).isTrue();
+    }
+
+    @Test
+    public void isSliceableIncorrectKey_returnsFalse() {
+        final AutoRotatePreferenceController controller =
+                new AutoRotatePreferenceController(mContext, "bad_key");
+        assertThat(controller.isSliceable()).isFalse();
+    }
+
+    private void enableAutoRotationPreference() {
+        when(mPackageManager.hasSystemFeature(anyString())).thenReturn(true);
+        when(mContext.getResources().getBoolean(anyInt())).thenReturn(true);
+        Settings.System.putInt(mContentResolver,
+                Settings.System.HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY, 0);
+    }
+
+    private void disableAutoRotationPreference() {
+        when(mPackageManager.hasSystemFeature(anyString())).thenReturn(true);
+        when(mContext.getResources().getBoolean(anyInt())).thenReturn(true);
+        Settings.System.putInt(mContentResolver,
+                Settings.System.HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY, 1);
+    }
+
+    private void enableAutoRotation() {
+        Settings.System.putIntForUser(mContentResolver,
+                Settings.System.ACCELEROMETER_ROTATION, 1, UserHandle.USER_CURRENT);
+    }
+
+    private void disableAutoRotation() {
+        Settings.System.putIntForUser(mContentResolver,
+                Settings.System.ACCELEROMETER_ROTATION, 0, UserHandle.USER_CURRENT);
+    }
+
+    private void enableCameraBasedRotation() {
+        Settings.Secure.putIntForUser(mContentResolver,
+                CAMERA_AUTOROTATE, 1, UserHandle.USER_CURRENT);
+    }
+
+    private void disableCameraBasedRotation() {
+        Settings.Secure.putIntForUser(mContentResolver,
+                CAMERA_AUTOROTATE, 0, UserHandle.USER_CURRENT);
+    }
+}